Metallic pole.



W. R. KINNEAR.

METALLIC POLE.

APPLICATION FILED 11116.20, 1909.

Patented Oct 25, 1910.

4 SHEETS-SHEET 1.

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W. R. KINNEAR.

METALLIC POLE.

APPLICATION FILED AUG.20, 1909.

4 SHEETS-SHEET 2.

Patented Oct. 25, 1910.

W. R. KINNEAR.

METALLIC POLE. APPLICATION FILED AUG. 20, 1909 Patented Oct. 25, 1910.

4 SHEBTSSHEET 3.

W. R. KINNEAR.

METALLIC POLE.

APPLICATION FILED AUG. 20, 1909.

Patented Oct. 25, 1910 4 SHEBTSSHEET 4.

3140c n-toz AQAMLLVLT WILLIAM R. KINNEAB, OF NEW CASTLE, PENNSYLVANIA.

iunranmc POLE.

Specification of Letters I'atent.

Application filed August 20, 1909. Serial N0. 513,892.

Patented Oct. 25, 1910.

To all whom it may concern:

Be it known that I, WILLIAM R. KINNEAR, a citizen of the United States, residing at New Castle, in the count of Lawrence and State of Pennsylvania, ave invented certain new and useful Improvements in Metal-' lie Poles, of which the following is a specification. 1 I

The present invention relates to metallic poles for telegraph, telephone and trolley service and has for its. purpose to provide a pole of that character made up of a plurallty of sections which by their peculiar design and manner of assembling, constitute transversely rigid lon 'tudinal compression members of an uprig t and rigid column suitable to readily withstand all the normal strains to which it may be subjected.

Another object is to provide abutment plates or union pieces interposed between adjacent ends of each two compression members and constructed to provide seats for said com ression members, whereby the latter are eld in alinement and sustained against outward or inward displacement. or

buckling.

A further object is to members for the column, whlch shall extend between and be connected to the end com,-

' are preferabl larger. end of one section corresponds in di-- pression members. Said tension members are made. to extend through the abutment plates but for convenience in shipment and also to adapt them to impose compression on each plate as assembled, said tension members are divided into sections and united by coupled sleeves. The compression members base. of the co umn relatively wider than the head and in order that the assembled, parts may have their walls in alinement, the

mensions with the smaller end of the next lower section. The tension members are preferably given substantially the same inthe we ls so as to increase the rigidity of the clination as the side walls; in other words, are substantially parallelto the side structure.

The further purpose of the invention is to so construct the several sectionsof the pole that they may be telescoped for shipment, and wherein the reinforcing elements and connecting members may be contained within the telescoped sections.

A further purpose of the invention is to construct a pole of a number of sections provide tension tapered so as to make the.

which are individually united by a peculiar seam which in addition to giving rigidity to the pole when the sections are assembled, further provides a means that will aid the linemen to climb the pole.

With these as the essential objects, my invention embodies other advantages that will be obvious from the following extended description and set forth in the claims.

The invention is shown in its preferred structure in the accompanying drawings, wherein,

Figure 1 is an elevation of a pole showing the sections assembled, Fig. 2 is'a detail sectional view showing the manner of assembling and-reinforcing the sections, Fig.3 is a transversesectional view taken along the line 33 of Fig. 2, Fig. 4 is a sectional view in detail showing the manner of anchoring the pole, Fig. 5 is a transverse section in detail of the upper end of the pole, Fig. 6 is a sectional view, part1 in elevation, showing the manner of .lea ing in underground wires, Fig. 7 is a diagrammatic sectional plan view of the sections constituting the pole'when assembled, Fig. 8 is a transverse sectional view of the ole showing a modified form of section, Fig. 9 is a longitudinal view of thesections shown in Fig. 8, Fig. 10 is a detail view of a modified form of union plate shown in Figs. "8 and 9, Fig. 11 is a sectional view of Fig. 10, Fig. 12 is'a sectional view of a further modification, and, Fig. 13 is a sectional view showing the several sections of a pole telescoped and their associated parts contained therein, for transportation. V

Referring to the several figures and with like numerals of reference indicating corresponding parts in the different views shown,

1 designates the metallic sections which are. made preferably oi a single sheet of metal,

the side edges whereof are united by a double seam as indicated by the numeral 2 in Fig. 3. Each of the sections 1 is in cross section of four-lobed desi and tapers in its length, and in cross imensions is vdependent upon its position when assembled; thus the lower section or base is of greater width'than the middle section, and that section is correspondingly greater than the upper section as will be obvious. These sec tions constitute compression members in the column, for which reason as well' as for the purpose of creating a more ornamental ap pearance and permitting a better disposition of the internal tension members, the adjacent or abutting ends of the sections substantially correspond in dimensions. For holding the sections in respective alineinent when assembled and giving lateral strength thereto, there are provided castings or unlon pieces 3 whose outline is in desi precisely that of the metallic sections. ach of the castings 3 is cut awa for its central ortion to reduce its weight, and is provided with inner and outer oppositely disposed flange elements 4 and 5v respectively, the inner of which flanges is greater in lengthwise dimension. The flanges or ridges 4 and 5 provide between them upper and lower circumferential grooves 6 and 7 respectively which are in exact alinement and provide respectively the cap for a lower sectlon and the base or seat for the upper section in which manner the several lengths of the poleare assembled, as clearly shown in Fig. 2. The outer flange 5 of the union piece 3 has formed therein at suitable intervals downwardly dis osed perforations 5 which communicate w1th the upper channel 6 for the purpose of providing a drain for such water as would accumulate therein by rea son of running down the sides of the pole.

For holding the several metallic sections 1 in superposed and assembled relation, there are provided a plurality of reinforcing bars 8, constituting tension members,

there being shown in the present instance four such bars. The castin or union pieces are each provided with per orations throligh which the bars pass, for convenience in assemblin and putting compression on each plate in ividually, each bar isprovided with a tightening nut 9 to receive which. said bars have screw threads 10. For convenience in shipment and also for ad'usting the bars to proper length, they are divided into sections and united by screw threaded sleeves 11. The sections of the tension members or bars thus produced are equal in length to the individual compression members but when assembled, each section of tension member extends through one plate but terminates slightly above the next lower plate in order to receive the nut 8 and a sleeve 11. When assembled, the sections of the rods constitute continuous tension members extending from the base to the to of the pole and they are thereby adapte to draw the entire structure together into a rigid column. In addition to their function of uniting the bars 8 into a continuous reinforcing strand, said sleeves 11 may serve the further function of locking the nuts 9 to the plate 3 and thus hold the sections of the post against loosening.

Forv assembling the several members above described into pole construction the bottom section 1 is anchored in the ground as shown in Fig. 4 for which purpose the interior of that portion of the section 1 which enters the ground is filled with cement 12 that is held within the same by a base plate 13 which base plate is in cross section of a design similar to the contour of the section 1, and has on its upper face a groove 14 within which, fits the lower edge of said section 1. And for making this anchorage positively effective the strands 8 of the ground section are embedded within the cement 12 and have their lower ends passing through the bed plate 13 to which they are secured by locklng nuts 15 disposed to either side t ereof. The upper ends of the strands 8 shown in 4 are secured to the casting 3 supported upon the ground section 1 in precisely that manner shown in Fig. 2. The upper ends of the several reinforcing strands 8 project enough beyond the up r section 1 of the pole to secure a cap or ead plate 15 which is channeled or grooved to receive the upper edge of the section and which is held in such p ositign by the end nuts 17 as shown in Upon the nature of the work for which the pole is intended depends, of course, the manner of supporting or leading-in -the wires. I have shown in 6 the means by which under ground wires may be led through the pole. In this instance the ground section is not anchored in the manner shown in F 4 i. e. no cement is used, but has instead acentral tube or pipe 18 leadin from a conduit 19 and extending throng out the length of the pole.

In the ty of pole shown in Figs. 8 and 9 the severai parts 1 comprise half sections, the side edges of which are each formed with an ofistanding and inturned flange 20 one fitting within the other as shown in Fig. 8, and by which means said sections are united, and to further strengthen this means of uniting the parts there are rovided a plurality of reinforcing bars 21l1kewise formed in'sections, each having the length of the individual sections of the ole whlch it supports as clearly shown in ig. 8. An advantage of providing this ty of section is that the unions formed by IE: side flanges or seams 20 provide a suitable workin surface for climbers which is an essentia requirement the poles of the present type.

The or union plates 22 used in this construction are in most res cts similar to the corresponding plates use in the construction shown in Fi 1 and 2, di erilrg only in that t1projecting from opposite si es or adjacent e union members 20 said castings have ofistanding members or ledges 23, their function being to provide water sheds or drains for the individual sections which make u the pole. And in the present instance the inner and outer ridges 24 and 25 are terminated adjacent the members 23 in order to provide a clearance or space for the seam 20.

In assembling the sections of the pole of the type shown in Figs. 8 and 9 the ground section is anchored in any suitable manner and to the base plate of the anchorage the bar 21 is suitably held. At its upper end the several reinforcing strands are secured tothe union piece 22 1n the manner heretofore described, but the reinforcing bars 21 are terminated just beneath the ledges 23. On the next superposed section the reinforcing bars thereof rest upon said members As illustrated in Fig. 10, the union plate 26 has the outer of its flange elements 27 constructed along the lines shown in Fig. 2 but its inner flange 28 is turned in at the points 29 to give a suitable clearance for .the reinforcing strands 8 which in this instance are disposed between the flanges 27 and 28 instead of being within the inner of said flanges as is the case in the structure heretofore described. In the present instance the peculiar manner of disposing the flanges provides asuitable recess for the nuts 9 and their locking sleeves 11 of the several reinforcing bars. Otherwise the manner of applying this type of union plate is as heretofore explained.

Fig. 12 shows a type of pole intended for use where great height is not required, as for example lamp posts and the like. In this instance the pole is constructed of sections 30 of the type shown in Figs. 1 and 2 and which has the union pieces 31 formed with the usual ridges 32 and 33, but since the same is of no great height the usual reinforcing bars or strands are dis ensed with usin instead a single center-Ear or strengthening member 34 which is suitably anchored to the ground section of the pole and passes continuously through the several union plates to the top of the uppermost section.

Fig. 13 shows the several sections composing the pole telescoped and having contained therein the several abutment plates, heads or castings and the sectional bars 8 which constitute, when assembled, the reinforcing elements. When thus collapsed for transportation. the several parts are held by the end heads or closures 35 which are held together by the tightening rods 36.

Having thus described my invention, what I claim as new therein and desire to secure by Letters Patent, is

\ A pole of the character described coin prlsinga plurality of abutting sections, in-

terposed abutment and centering plates and internal tension members drawing the sections into abutment with the interposed plates and holding the parts of the Stl'llCr.

form adapted to telescope one within another, abutment plates adapted to receive the ends of said sections when assembled in alinement with the plates interposed between adjacent ends of the sections, and tension means for drawing the sections together and holding them in abutment with said plates. 3. A pole of the character described comprising a plurality of tapered sections constructed with the larger end of one sect-ion corresponding in dimensions to the smaller end of a next lower section, plates adapted to be interposed between the sections and constructed to receive the ends of the sections when brought into abutment therewith and tension members within the 'sections extending-between and connected with the two end sections and, adapted to draw the sections together and hold them in assembled relation. 4. A pole of the character described com prising tapered sections, interposed abutment plates provided with seats for the sections adapted to aline the sections when assembled and tension means connected with the end sections, extending through a plate and adapted to draw the sections together.

5. A pole of the character described comprising compression members constructed with outwardly lobed cross section to strengthen them transversely, union pieces constructed to receive the ends of the com pression members in abutment, and tension members connected with the end compression members and extending from one of said end members, through the union piece to the other end member and adapted to impose compression upon the column of members when in assembled relation.

6. A pole of the character described comprising a plurality of metallic sections, castings provided with flanges adapted to receive the ends of said sections and hold the same in relative alinement, a plurality of strands adapted to reinforce the assembled sections, said strands comprising a plurality of bars and means for holding said bars together.

7 pole of the'character describedcomprising a plurality of metallic sections, castings provided with oppositely disposed flanges adapted to receive the ends of said sections and hold the same in relative aline- 8. A pole of the character described com-- prising a plurality of metallic sections,

castings adapted to receive the ends of said sections and hold the same in relative alinement, said castings provided with oppositely disposed pairs of grooves providing channels to receive the ends of the sections, and a plurality of bars coupled to said castings and adapted to reinforce the assembled sections.

9. A pole of the character described comprising a plurality of metallic sections, each of said sections formed of a metallic sheet united by side seams, reinforcing members for said seams, castings adapted to hold said sections in relative alinement, and a plurality of bars adapted to reinforce the assembled sections.

10. A pole of the character described com prising a plurality of metallic sections, each of said sections formed of sheets of metal united by side seams, said seams providing a surface for climbers, means for reinforcing said seams, castings provided with flanges adapted to receive the ends of said sections and hold the same in relative -alinement, and a plurality of connected bars coupled to said castings and adapted to reinforce the assembled sections.

The foregoing specification si ed at Brooklyn, N. Y., this 18th day of ay, 1909.

WILLIAM R. KINNEAR.

In presence of E. M. HUNGERFORD, C. LULU Bane. 

